R6G (rhodamine 6G) is a yellow emitting xanthene dye. It has been used for DNA sequencing before. Now this dye is often used for qPCR. This is a pure 5-isomer of R6G with azide group.
R6G azide, 5-isomer
Appearance: orange to brown powder Mass spec M+ increment: 540.3 Molecular weight: 540.61 CAS number: 2135330-71-9 Molecular formula: C30H32N6O4 Solubility: good in DMF, DMSO, alcohols Quality control: NMR 1H, HPLC-MS (95%) Storage conditions: Storage: 24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light. Desiccate.